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-rw-r--r--select_booking.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/select_booking.c b/select_booking.c
new file mode 100644
index 0000000..4eaadcb
--- /dev/null
+++ b/select_booking.c
@@ -0,0 +1,42 @@
+#include <assert.h>
+#include <err.h>
+#include <stdio.h>
+
+#include "sqlite/sqlite3.h"
+
+static const char *DATABASE = "booking.db";
+
+int
+main(void)
+{
+ sqlite3 *db;
+ if (sqlite3_open(DATABASE, &db))
+ errx(1, "sqlite3_open: %s", sqlite3_errmsg(db));
+
+ const char *sql = "SELECT "
+ "datetime(start, 'unixepoch'), "
+ "datetime(end, 'unixepoch'), "
+ "(end-start)/60/60, "
+ "summary "
+ "FROM event "
+ "WHERE unixepoch()-6*3600 < start "
+ "AND summary IS NOT NULL "
+ "ORDER BY start";
+ sqlite3_stmt *stmt = NULL;
+ if (sqlite3_prepare_v2(db, sql, -1, &stmt, NULL))
+ errx(1, "sqlite3_prepare_v2: %s", sqlite3_errmsg(db));
+
+ for (;;) {
+ int step = sqlite3_step(stmt);
+ if (SQLITE_DONE == step)
+ break;
+ if (SQLITE_ROW != step)
+ errx(1, "sqlite3_step: %s", sqlite3_errmsg(db));
+
+ const unsigned char *summary = sqlite3_column_text(stmt, 3);
+ assert(summary);
+ printf("%s\n", summary);
+ }
+
+ sqlite3_close(db);
+}